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Shell Programming and Scripting

Function call

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# 8  
Old 07-23-2009
small help

how to exit from a unix for loop once inner loop is false

Code:
for i in `cat input.txt` ; do
  a=`expr $a + 1`
  echo $a
  for j in `cat mnu.txt` ; do
     b=`expr $b + 1`
     echo $b
     if [ $a == $b ];
       echo "after a=b check"
       echo $a
       echo $b
     then
       echo   "a and be are equal"
       $UXEXE/uxext tsk ses=$i vses=* upr=* model mu=$j `output=$j_$i.pnf` APP
       echo "$output PLANNIFICATION exported"
     else
       break 
     fi
   done
   echo "out of j loop"
 done

Last edited by Franklin52; 07-23-2009 at 08:11 AM.. Reason: Please use code tags!
# 9  
Old 07-23-2009
You can use a flag:

Code:
for i in `cat input.txt` ; do
  a=`expr $a + 1`
  echo $a
  for j in `cat mnu.txt` ; do
     b=`expr $b + 1`
     echo $b
     if [ $a == $b ];
       echo "after a=b check"
       echo $a
       echo $b
     then
       echo   "a and be are equal"
       $UXEXE/uxext tsk ses=$i vses=* upr=* model mu=$j `output=$j_$i.pnf` APP
       echo "$output PLANNIFICATION exported"
     else
       f=1
       break
     fi
  done
  echo "out of j loop"
  if [ $f -eq 1 ]; then
    break
  fi
done

# 10  
Old 07-23-2009
reply
this is correct but than fuunctionality is chaging the loop is outer loop is considering the value of a as 1 and value of b =2 so it will never meet the functionality
******************
it must be like first time both variable will be equal do the functionality
second time value of b != a so it must come out and enter the i loop
->now i must take the second line of the input file and compare it with the second line of b
# 11  
Old 07-23-2009
Your question is not clear to me but a break within the j loop should be sufficient to terminates only the j loop.
# 12  
Old 07-23-2009
Dear Franklin
my exact functionality is as follows:
1>the function pln must take the first line of data from the input.ksh then
2>it must take the first line of mnu.ksh and it must do
$UXEXE/uxext tsk ses=$i vses=* upr=* model mu=$j `output=$j_$i.pnf` APP
3>it must again than take the second line of input.ksh and 2 line of mnu and again it must perform
$UXEXE/uxext tsk ses=$i vses=* upr=* model mu=$j `output=$j_$i.pnf` APP

like this it must keep on doing till the end of both the files
# 13  
Old 07-23-2009
You can do something like this:

Code:
#!/bin/sh

c=0

while read i
do
  arr[c]="$i"
  c=$(( $c + 1 ))
done < mnu.txt

c=0

while read i
do
  j=${arr[$c]}
  $UXEXE/uxext tsk ses=$i vses=* upr=* model mu=$j `output=$j_$i.pnf` APP
  c=$(( $c + 1 ))
done < input.txt
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